Introduction to PHP two-dimensional array sorting and default natural sorting methods

PHP two-dimensional array sorting function, default natural sorting, that is, sort sorting. Here you can specify multiple methods to sort by a certain value in the two-dimensional array. See the program comments below for details.

/** 
  * @function 二维数组自然排序 
  * @author www.phpernote.com 
  * @param array $array 需要排序的数组（二维） 
  * @param string key 需要根据哪个键排序 
  * @param string order 排序方式（SORT_ASC，SORT_DESC） 
  * @param string type 排序方法（SORT_REGULAR，SORT_NUMERIC，SORT_STRING） 
  * @return array sorted array. 
  */
 function phpSortArray($array,$key,$order="SORT_ASC",$type="SORT_REGULAR"){ 
     if(!is_array($array)||empty($$array)){ 
         return $array; 
     } 
     $ArgCount=func_num_args();//返回传递到目前定义函数的参数数目 
     for($I=1;$I<$ArgCount;$I++){ 
         $Arg=func_get_arg($I); 
         if(!eregi("SORT",$Arg)){ 
             $KeyNameList[]=$Arg; 
             $SortRule[]=&#39;$&#39;.$Arg; 
         }else{ 
             $SortRule[]=$Arg; 
         } 
     } 
     foreach($array AS $Key=>$Info){ 
         foreach($KeyNameList as $KeyName){ 
             ${$KeyName}[$Key]=$Info[$KeyName]; 
         } 
     } 
     $EvalString=&#39;array_multisort(&#39;.join(",",$SortRule).&#39;,$array);&#39;; 
     eval($EvalString); 
     return $array; 
 }

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